<div><br />''</div>''<div>Israel's president today raised alarm over a proposed law seen as opening the door to the establishment of Jewish-only communities in the country. </div>''<div><br />''</div>''<div>Reuven Rivlin's comments marked a rare intervention in politics by the country's president, whose role is mainly symbolic. </div>''<div><br />''</div>''<div>He voiced his concerns in an open letter, pointing to a clause in proposed legislation defining Israel as the "national home of the Jewish people". </div>''<div><br />''</div>''<div>The clause Rivlin criticised would allow the state to authorise a community composed of people having the same faith and nationality to maintain the exclusive character of that community.</div>''<div><br />''</div>''<div>He said the bill could allow the establishment of towns that would, for example, exclude Jews of Middle Eastern origin, ultra-Orthodox Jews or homosexuals. </div>''<div><br />''</div>''<div>Israeli Arabs largely support the Palestinian cause, and right-wing Jews often accuse them of disloyalty. </div>''<div><br />''</div>''<div>Netanyahu supports the bill but has not commented on the clause in question. </div>''<div><br />''</div>''<div>The government is hoping to win approval for the bill during the current parliamentary session, which finishes at the end of July.  Negotiations on potential amendments are ongoing. </div>